other: The surface tension result is corrected for water calibration as well as for measurement ring parameters (Harkins-Jordan). Solution age was 10 minutes for test No 1 and 15 minutes for test No 2.

Calibration:

The measured value of the surface tension of water: 67.5 mN/m.

EC standard reading for surface tension of water: 72.75 mN/m.

Calibration factor is: 72.75/67.5 = 1.078

The calibration factor is determined by measuring the Surface Tension of water and comparing the value obtained in literature.

The corrected value for measurement ring parameters is taken from a table compiled on the basis of the Harkins-Jordan correction.

The duplicate runs provided following values: 65.8 mN/m for run 1 and 64.7 mN/m for run 2.

Conclusions:

The surface tension of the substance was determined to be 65.3 mN/m at a test concentration of 1 g/L and at 20°C. The substance is concluded not to have surface active properties.

Description of key information

The surface tension of the test substance was determined in a GLP-compliant study according to test method EC A.5, to be 65.3 mN/m at a test concentration of 1 g/L and at 20°C, following the ring method (Younis S, 2012).

Key value for chemical safety assessment

Surface tension:

65.3

in mN/m at 20°C and concentration in mg/L:

1 000

Additional information

The substance is concluded not to have surface active properties.

Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.

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